Anonymous

void MythImage::MakeGradient(QImage &image, const QColor &begin,
                             const QColor &end, int alpha, bool drawBoundary,
                             FillDirection direction)
{
    // Gradient fill colours
    QColor startColor = begin;
    QColor endColor = end;
    startColor.setAlpha(alpha);
    endColor.setAlpha(alpha);

    // Define Gradient
    QPoint pointA(0,0);
    QPoint pointB;
    if (direction == FillTopToBottom)
    {
        pointB = QPoint(0,image.height());
    }
    else if (direction == FillLeftToRight)
    {
        pointB = QPoint(image.width(),0);
    }

    QLinearGradient gradient(pointA, pointB);
    gradient.setColorAt(0, startColor);
    gradient.setColorAt(1, endColor);

    // Draw Gradient
    QPainter painter(&image);
    painter.setCompositionMode(QPainter::CompositionMode_Source);
    painter.fillRect(0, 0, image.width(), image.height(), gradient);

    if (drawBoundary)
    {
        // Draw boundry rect
        QColor black(0, 0, 0, alpha);
        painter.setPen(black);
        QPen pen = painter.pen();
        pen.setWidth(1);
        painter.drawRect(image.rect());
    }
    painter.end();
}